Pakistan’s prime minister traveled to restive southwestern Balochistan province Thursday to meet survivors of a train attack and the commandos who rescued over 300 passengers from the insurgents who killed 21 civilians and four troops.

Pakistani security forces killed all 33 insurgents who have been holding a train and its passengers captive since Tuesday, putting an end to an embarrassing security failure for Prime Minister Shehbaz Sharif. The government also said 21 of the hostages had been killed by militants.

Baloch separatist militants blew up a railway track and launched rockets at the Jaffar Express, which was carrying over 400 passengers.